Stir milk, yeast and 1 teaspoon sugar together and let stand for 5 minutes.

Whisk in remaining sugar, egg and shortening, then mix in flour and salt.

Knead for 7 minutes until smooth and slightly tacky, cover and let rise for 1 hour.

Grease a 9-by-13-inch pan, divide dough into 15 equal balls and arrange them in three rows.

Cover and proof for 35 to 45 minutes while the oven heats to 375°F.

Bake for 18 to 20 minutes until evenly golden and brush immediately with melted butter.